Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.
Average class size
21.67
2025/26
Mainstream classes
9
2025/26
Largest class group
32
2025/26
Classes with 30+ pupils
1
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
174
8
21.75
25
0
2007/08
194
8
24.25
27
0
2008/09
210
9
23.33
29
0
2009/10
211
10
21.10
26
0
2010/11
210
10
21.00
26
0
2011/12
221
10
22.10
27
0
2012/13
211
9
23.44
26
0
2013/14
217
8
27.12
31
1
2014/15
215
8
26.88
31
2
2015/16
221
8
27.62
31
3
2016/17
246
9
27.33
33
4
2017/18
247
9
27.44
33
3
2019/20
251
10
25.10
31
2
2020/21
257
10
25.70
32
3
2021/22
250
10
25.00
33
2
2022/23
247
10
24.70
32
2
2023/24
238
10
23.80
34
1
2024/25
212
10
21.20
27
0
2025/26
195
9
21.67
32
1
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2016/17: 221 in 2015/16 → 246, +25 pupils.
Biggest loss in a single year: 1993/94: 311 in 1982/83 → 246, -65 pupils.
Largest single-class increase: 5th Class in 2022/23 (32 → 54, +22).
Largest single-class decrease: 5th Class in 2023/24 (54 → 26, -28).
Largest cohort-step gain: 4th → 5th in 2022/23 (48 → 54, +6).
Largest cohort-step loss: 5th → 6th in 2025/26 (41 → 37, -4).
Overall: 285 (1975/76) → 195 (2025/26), -90.
Summary statistics (class-level data)
Min / max / mean enrolment per class across the available final by-standard years.
Class
Min
Max
Mean
Years
Junior Infants
14
32
21.7
6
Senior Infants
19
33
23.7
6
1st Class
19
34
25.3
6
2nd Class
21
35
27.8
6
3rd Class
21
49
32.3
6
4th Class
25
48
33.7
6
5th Class
26
54
35.3
6
6th Class
26
50
33.3
6
Total
180
318
233.7
41
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
Enrolment by gender over time
Enrolment by class over time
Cohort progression
Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).